I am still offline since that faitful dom0 update/reboot for whatever reason, 
but have been unable to find the time to resolve this, due mostly to being 
off-line. I got a few minutes before work today to try a few things, without 
any luck. I switched back to hvm mode since pv didn't buy me anything. Trying 
random things is obviously not the best methodology.


I had noticed that qvm-prefs was displaying network information (IP address) 
that the qube-manager did not. But I would not think that the gateway should be 
equal to its own IP address though. I just wish I had a working system so I 
could compare configurations.  After playing with qvm-prefs --set the 
qube-manager seems to at least be finally displaying the same information. Not 
that it helped anything.


$ qvm-prefs sys-net

autostart             -  False
backup_timestamp      -  1525126185
debug                 -  True
default_dispvm        D  fedora-26-dvm
default_user          D  user
gateway               D  10.137.0.5
gateway6              D
include_in_backups    D  True
installed_by_rpm      D  False
ip                    D  10.137.0.5
ip6                   D
kernel                D  4.14.18-1
kernelopts            -  nopat iommu=soft swiotlb=8192
klass                 D  AppVM
label                 -  red
mac                   D  00:16:3E:5E:6C:00
maxmem                -  8000
memory                -  800
name                  -  sys-net
netvm                 -  None
provides_network      -  True
qid                   -  5
qrexec_timeout        D  60
start_time            D  1525698772.6
stubdom_mem           U
stubdom_xid           D  16
template              -  fedora-26-net
template_for_dispvms  D  False
updateable            D  False
uuid                  -  e7332e9f-b252-47e4-a997-b62f8310441d
vcpus                 D  2
virt_mode             -  hvm
visible_gateway       D
visible_gateway6      D
visible_ip            D  10.137.0.5
visible_ip6           D
visible_netmask       D
xid                   D  15


The nic interface name also seems to have changed, again. It used to be eth0 
back when everything was working, before that dom0 update, then the IF was 
missing entirely,  then it first showed up as enp0s0, and now showing up as 
"ens5", but there is still no dhcp happening on that interface to obtain an IP 
address from the real network.


Q: What property/action in dom0 is supposed to cause this dhcp to happen in 
sys-net?

Q: Why would the if name be changing like this? Is it a HVM vs PV interface 
driver convention? If so, what causes it to change to eth0 which used to work?


thanks,


Steve


________________________________
From: qubes-users@googlegroups.com <qubes-users@googlegroups.com> on behalf of 
Coleman, Steve L. <steve.cole...@jhuapl.edu>
Sent: Thursday, May 3, 2018 9:42 AM
To: Franz
Cc: qubes-users@googlegroups.com
Subject: Re: [qubes-users] Q 4.0 updates took my sys-net off line



________________________________
From: Franz <169...@gmail.com>
Sent: Wednesday, May 2, 2018 5:12 PM
To: Coleman, Steve L.
Cc: qubes-users@googlegroups.com
Subject: Re: [qubes-users] Q 4.0 updates took my sys-net off line



On Wed, May 2, 2018 at 4:03 PM, Coleman, Steve L. 
<steve.cole...@jhuapl.edu<mailto:steve.cole...@jhuapl.edu>> wrote:


________________________________
From: Franz <169...@gmail.com<mailto:169...@gmail.com>>
Sent: Wednesday, May 2, 2018 2:58 PM
To: Coleman, Steve L.
Cc: qubes-users@googlegroups.com<mailto:qubes-users@googlegroups.com>
Subject: Re: [qubes-users] Q 4.0 updates took my sys-net off line

Have you tried using a different template to generate sys-net?

Yes, I have tried my fedora-26-net, fedora-26-minimal, and generic fedora-26 
templates with both the old sys-net and the one I re-created.  None of that 
helped.



It is always Fedora, perhaps Debian...

The thing is that the updates were patches on the Dom0 side of the world that 
broke it. The template used by sys-net was not even changed and fedora should 
just work, as it is the default for the Qubes system.

At first the enp0s0 interface did not appear in sys-net at all, and I have been 
struggling to try to bring the if up, and nothing I have tried so far seems to 
work.  I managed to get the network card assigned to sys-net but I don't know 
what dom0 invokes within sys-net to tell it to do the dhcp stuff.

On Wed, May 2, 2018 at 3:46 PM, Coleman, Steve L. 
<steve.cole...@jhuapl.edu<mailto:steve.cole...@jhuapl.edu>> wrote:

Yesterday I pulled some Dom0 updates and rebooted to complete the install, and 
since then had no luck at getting it back online. My sys-net is not properly 
configuring the network card so that eth0 never gets configured properly and 
assigned an address.


I have tried switching between HVM/PV modes with no luck. I created a new 
sys-net and assigned the controller over with no joy either. Any advice on what 
to look at next would be very much appreciated.


[user@sys-net ~]$ ifconfig -a
enp0s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 18:03:73:be:70:17  txqueuelen 1000  (Ethernet)
        RX packets 2033  bytes 193536 (189.0 KiB)
        RX errors 132  dropped 0  overruns 0  frame 132
        TX packets 7797  bytes 1484630 (1.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 26  memory 0xe1600000-e1620000

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 645  bytes 31721 (30.9 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 645  bytes 31721 (30.9 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vif6.0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.137.0.5  netmask 255.255.255.255  broadcast 0.0.0.0
        inet6 fe80::fcff:ffff:feff:ffff  prefixlen 64  scopeid 0x20<link>
        ether fe:ff:ff:ff:ff:ff  txqueuelen 32  (Ethernet)
        RX packets 16375  bytes 1014366 (990.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 14967  bytes 1473500 (1.4 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0


[user@sys-net ~]$ sudo dmesg | grep -i e1000e
[    8.488338] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[    8.488350] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[    8.488565] e1000e 0000:00:00.0: Xen PCI mapped GSI20 to IRQ26
[    8.489625] e1000e 0000:00:00.0: Interrupt Throttling Rate (ints/sec) set to 
dynamic conservative mode
[    8.589599] e1000e 0000:00:00.0 0000:00:00.0 (uninitialized): registered PHC 
clock
[    8.684606] e1000e 0000:00:00.0 eth0: (PCI Express:2.5GT/s:Width x1) 
18:03:73:be:70:17
[    8.684638] e1000e 0000:00:00.0 eth0: Intel(R) PRO/1000 Network Connection
[    8.684690] e1000e 0000:00:00.0 eth0: MAC: 10, PHY: 11, PBA No: E041FF-0FF
[    8.747515] e1000e 0000:00:00.0 enp0s0: renamed from eth0
[   18.923186] e1000e: enp0s0 NIC Link is Up 1000 Mbps Full Duplex, Flow 
Control: None
[44053.103546] e1000e: enp0s0 NIC Link is Down
[44062.829234] e1000e: enp0s0 NIC Link is Up 1000 Mbps Full Duplex, Flow 
Control: None
[44103.730522] e1000e: enp0s0 NIC Link is Down
[44106.646419] e1000e: enp0s0 NIC Link is Up 1000 Mbps Full Duplex, Flow 
Control: None
[44119.384485] e1000e: enp0s0 NIC Link is Down
[44122.317273] e1000e: enp0s0 NIC Link is Up 1000 Mbps Full Duplex, Flow 
Control: None

[@dom0 ~] lspci | grep Ethernet
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network 
Connection (Lewisville) (rev 04)


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